/*
* Copyright 2012 Red Hat Inc .
*
* Permission is hereby granted , free of charge , to any person obtaining a
* copy of this software and associated documentation files ( the " Software " ) ,
* to deal in the Software without restriction , including without limitation
* the rights to use , copy , modify , merge , publish , distribute , sublicense ,
* and / or sell copies of the Software , and to permit persons to whom the
* Software is furnished to do so , subject to the following conditions :
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND , EXPRESS OR
* IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY ,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT . IN NO EVENT SHALL
* THE COPYRIGHT HOLDER ( S ) OR AUTHOR ( S ) BE LIABLE FOR ANY CLAIM , DAMAGES OR
* OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT , TORT OR OTHERWISE ,
* ARISING FROM , OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE .
*
* Authors : Ben Skeggs
*/
#include "priv.h"
static int
pwm_info(struct nvkm_therm *therm, int line)
{
struct nvkm_subdev *subdev = &therm->subdev;
struct nvkm_device *device = subdev->device;
u32 gpio = nvkm_rd32(device, 0 x00d610 + (line * 0 x04));
switch (gpio & 0 x000000c0) {
case 0 x00000000: /* normal mode, possibly pwm forced off by us */
case 0 x00000040: /* nvio special */
switch (gpio & 0 x0000001f) {
case 0 x00: return 2 ;
case 0 x19: return 1 ;
case 0 x1c: return 0 ;
case 0 x1e: return 2 ;
default :
break ;
}
break ;
default :
break ;
}
nvkm_error(subdev, "GPIO %d unknown PWM: %08x\n" , line, gpio);
return -ENODEV;
}
int
gf119_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
{
struct nvkm_device *device = therm->subdev.device;
u32 data = enable ? 0 x00000040 : 0 x00000000;
int indx = pwm_info(therm, line);
if (indx < 0 )
return indx;
else if (indx < 2 )
nvkm_mask(device, 0 x00d610 + (line * 0 x04), 0 x000000c0, data);
/* nothing to do for indx == 2, it seems hardwired to PTHERM */
return 0 ;
}
int
gf119_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
{
struct nvkm_device *device = therm->subdev.device;
int indx = pwm_info(therm, line);
if (indx < 0 )
return indx;
else if (indx < 2 ) {
if (nvkm_rd32(device, 0 x00d610 + (line * 0 x04)) & 0 x00000040) {
*divs = nvkm_rd32(device, 0 x00e114 + (indx * 8 ));
*duty = nvkm_rd32(device, 0 x00e118 + (indx * 8 ));
return 0 ;
}
} else if (indx == 2 ) {
*divs = nvkm_rd32(device, 0 x0200d8) & 0 x1fff;
*duty = nvkm_rd32(device, 0 x0200dc) & 0 x1fff;
return 0 ;
}
return -EINVAL;
}
int
gf119_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
{
struct nvkm_device *device = therm->subdev.device;
int indx = pwm_info(therm, line);
if (indx < 0 )
return indx;
else if (indx < 2 ) {
nvkm_wr32(device, 0 x00e114 + (indx * 8 ), divs);
nvkm_wr32(device, 0 x00e118 + (indx * 8 ), duty | 0 x80000000);
} else if (indx == 2 ) {
nvkm_mask(device, 0 x0200d8, 0 x1fff, divs); /* keep the high bits */
nvkm_wr32(device, 0 x0200dc, duty | 0 x40000000);
}
return 0 ;
}
int
gf119_fan_pwm_clock(struct nvkm_therm *therm, int line)
{
struct nvkm_device *device = therm->subdev.device;
int indx = pwm_info(therm, line);
if (indx < 0 )
return 0 ;
else if (indx < 2 )
return (device->crystal * 1000 ) / 20 ;
else
return device->crystal * 1000 / 10 ;
}
void
gf119_therm_init(struct nvkm_therm *therm)
{
struct nvkm_device *device = therm->subdev.device;
g84_sensor_setup(therm);
/* enable fan tach, count revolutions per-second */
nvkm_mask(device, 0 x00e720, 0 x00000003, 0 x00000002);
if (therm->fan->tach.func != DCB_GPIO_UNUSED) {
nvkm_mask(device, 0 x00d79c, 0 x000000ff, therm->fan->tach.line);
nvkm_wr32(device, 0 x00e724, device->crystal * 1000 );
nvkm_mask(device, 0 x00e720, 0 x00000001, 0 x00000001);
}
nvkm_mask(device, 0 x00e720, 0 x00000002, 0 x00000000);
}
static const struct nvkm_therm_func
gf119_therm = {
.init = gf119_therm_init,
.fini = g84_therm_fini,
.pwm_ctrl = gf119_fan_pwm_ctrl,
.pwm_get = gf119_fan_pwm_get,
.pwm_set = gf119_fan_pwm_set,
.pwm_clock = gf119_fan_pwm_clock,
.temp_get = g84_temp_get,
.fan_sense = gt215_therm_fan_sense,
.program_alarms = nvkm_therm_program_alarms_polling,
};
int
gf119_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
struct nvkm_therm **ptherm)
{
return nvkm_therm_new_(&gf119_therm, device, type, inst, ptherm);
}
Messung V0.5 in Prozent C=97 H=100 G=98
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-06)
¤
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